Michael mcmamee



(No Model.)

M. MQNAMEE.

LAMP.

No. 245,535. Patented Aug.'9, 1881.

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L B L Witnesses" I Inventor:

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MICHAEL MGNAMEE, OF BALTIMORE, MARYLAND.

LAMP.

SPECIFICATION forming part of Letters Patent No. 245,535, dated August 9, 1881.

Application filed May 31, 1881. (No model.)

To all whom it may concern:

Be it known that I, MIcHAEL MONAMEE, a citizen of the United States of America, residing at Baltimore, in the county of Baltimore and State of Maryland, have invented certain new and useful Improvements in Lamps and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to certain improvements in lamps, which are hereinafter first described, and then designated in the claims.

In the drawings hereto annexed, Figure] is a perspective of a wall-lamp embodying my improvements. Fig. 2 is a side view of a vertical section of the same lamp. Fig. 3 illustrates the flame-guard and wick-support. Fig. 4 is a section of the filler-indicator on alarger scale. Fig. 5 shows the application of the indicator to an ordinary hand-lamp.

The letter A designates the oil-fount, B the filling-orifice closed by the usual screw-cap, and O the indicator.

Theletter d denotes the back plate or hanger, by which the wall-lamp is suspended.

One of the features of my invention consists of the peculiar filler-indicator for lamps whose oil-founts are made of metal. 'A cylinder, E, has its lower end open, and its upper end rounded, as at f, in the form of a half-sphere. An opening in the center of this rounded part permits a glass tube, 0, to fit loosely. The tube is flanged at both ends, and plays up and down through the opening. After one end of the tube is flanged the otherisinse-rted through the opening in the rounded part,and is then flanged by a suitable tool and blow-pipe. In practice about three eighths of an inch is a proper length for the glass tube. A hollow glass ball, g, fits loosely in the cylinder E, the lower end of which has an inward turned flange, h, which so contracts the bottom opening as to prevent the ball from dropping out. This ball serves as afloat,for which the cylinder acts as a guide. An openingin the top ofthe metal oil-fount permits the cylinder to be secured in such position that only the rounded end or half-sphere f will project above the top of the oil-fount, as shown in the drawings. The sides of the cylinder nextto or adjoining the top have perforations t to afford vent when the oil has risen above the lower end of the cylinder in filling. The oil is entered through the opening B, and the hollow glass ball-float rises until the fount is nearly filled, at which time the ball presses against the lower end of the glass-tube indicator and raises it until onehalf of the ball occupies the concave socket formed by the rounded partf. As the glasstube indicator is not connected with the ballfloat there is no movement of the indicator as the float rises until thelamp-fonnt is very nearly full. The indicator, being tubular, serves to vent the lamp, and when filling the fount with oil it allows the escape therefrom of the air. In the case of the wall-lamp it serves a special use by venting to allow the oil to flow through the supply-tube to the wick-tube, which parts are hereinafter described. When the fountis full the ball-float presses against the flanged and concaved end of the tube indicator, and thus closes the vent.

This indicator is applicable to any style of metal lamp, such as street or hand lamps, as shown in Fig. 5.

Another feature of my invention will now be described.

L designates a \viclrcup, consisting of atube secured on the outside of the oil-fount. The lower end of this wick-tube is below the bottom or lowest part of the oil-fount, with which the wick-tube is connected by a short and small supply-tube, n, so placed as to drain the fount. The upper end of the wick-tube is provided with an ordinary threaded lamp collar or ring, m, into which any suitable burner (not shown) may be screwed. Just above the supply-tube n is a funnel-shaped intercepter, p,perforated to allow the oil to rise into the tube L. This intercepter sustains the end of the wick, keeping it out of the sediment which collects in the chamber at the bottom of the tube at q, that being the lowest place in the lamp for oil. This arrangement prevents any accumulation of sediment in such position as to en- I00 danger choking up the small supply-tube. It will be seen that the top of the intercepter is above the supply-tube, where it rests upon the inward shoulder, 1", while the lower funnelshaped end depends to a point below the mouth of the supply-tube, which it serves to guard, whereby all the oil may be consumed out of the fount without danger at that time of flame entering the fount by way of the wicktube, and the shape and position of the intercepter serve to keep the wick from the sediment in the bottom q of the tube. The lower end of the wick-tube serves, in connection with the lower edge of the back d of the lamp, as

a foot for the lamp when not hanging against the wall.

Having described my invention, Iclaim and desire to secure byLetters Patent of the United States- 1. The combination of an oil-fount having an opening in the top, a glass tube to fitloosely in the opening, and having a flange at both ends, and a float to move the glass tube, as set forth.

2. In a filler-indicator, the combination of a cylinder having its upper end rounded in the form of a half-sphere, and provided with an opening, a tube to fit loosely in the opening, and a ball-float fitting loosely in the cylinder, as set forth.

3. In alam p, the combination of an oil-fount, a wick-tube secured on the outside of the oilfount, an oil-supply tube, one end of which MICHAEL MONAMEE.

Witnesses:

CHAS. B. MANN, JNo. T. MADDoX. 

